During lunch I decided to buy some software for my computer (I needed to reinstall Office 2003) and went to my favourite software place close to Xiangyang market. While crossing Huaihai Road I noticed that people were all looking up at the sky. I wondered why and also looked up. There was a huge amount of smoke coming out of the new building next to Xiangyang market. It looked more spectacular than it really was though: according to a comment on Shanghaiist it was just an A/C unit on a lower roof that was on fire.
From the ground you could not see the cause, and a huge crowd soon gathered. A traffic jam formed immediately because drivers slowed down in order not to miss any part of the action. Most car drivers looked up instead of keeping their eyes on the road, and so within a few minutes an accident happened on the corner of Huaihai Lu and Donghu Lu. The chaos was now complete, so I decided it was time to walk back to the office.
(some more pictures on www.flickr.com/photos/chijs)